remove unused header for DatabaseConverter test

Signal.xcodeproj/project.pbxproj

@@ -964,7 +964,6 @@
 		34D920E620E179C200D51158 /* OWSMessageFooterView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = OWSMessageFooterView.m; sourceTree = "<group>"; };
 		34D99C911F2937CC00D284D6 /* OWSAnalytics.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = OWSAnalytics.swift; sourceTree = "<group>"; };
 		34D99CE3217509C1000AFB39 /* AppEnvironment.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AppEnvironment.swift; sourceTree = "<group>"; };
-		34DB0BEB2011548A007B313F /* OWSDatabaseConverterTest.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = OWSDatabaseConverterTest.h; sourceTree = "<group>"; };
 		34DB0BEC2011548B007B313F /* OWSDatabaseConverterTest.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = OWSDatabaseConverterTest.m; sourceTree = "<group>"; };
 		34DBEFFF206BD5A400025978 /* OWSMessageTextView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = OWSMessageTextView.m; sourceTree = "<group>"; };
 		34DBF000206BD5A400025978 /* OWSMessageTextView.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = OWSMessageTextView.h; sourceTree = "<group>"; };
@@ -2386,7 +2385,6 @@
 				45E7A6A61E71CA7E00D44FB5 /* DisplayableTextFilterTest.swift */,
 				B660F6AD1C29868000687D6E /* FunctionalUtilTest.m */,
 				455AC69D1F4F8B0300134004 /* ImageCacheTest.swift */,
-				34DB0BEB2011548A007B313F /* OWSDatabaseConverterTest.h */,
 				34DB0BEC2011548B007B313F /* OWSDatabaseConverterTest.m */,
 				34843B25214327C9004DED45 /* OWSOrphanDataCleanerTest.m */,
 				45666F571D9B2880008FE134 /* OWSScrubbingLogFormatterTest.m */,

Signal/test/util/OWSDatabaseConverterTest.h

@@ -1,13 +0,0 @@
-//
-//  Copyright (c) 2018 Open Whisper Systems. All rights reserved.
-//
-
-#import "SignalBaseTest.h"
-
-NS_ASSUME_NONNULL_BEGIN
-
-@interface OWSDatabaseConverterTest : SignalBaseTest
-
-@end
-
-NS_ASSUME_NONNULL_END

Signal/test/util/OWSDatabaseConverterTest.m

@@ -2,7 +2,7 @@
 //  Copyright (c) 2018 Open Whisper Systems. All rights reserved.
 //
 
-#import "OWSDatabaseConverterTest.h"
+#import "SignalBaseTest.h"
 #import <SignalCoreKit/NSData+OWS.h>
 #import <SignalCoreKit/Randomness.h>
 #import <SignalServiceKit/OWSFileSystem.h>
@@ -39,6 +39,12 @@ NS_ASSUME_NONNULL_BEGIN
 
 #pragma mark -
 
+@interface OWSDatabaseConverterTest : SignalBaseTest
+
+@end
+
+#pragma mark -
+
 @implementation OWSDatabaseConverterTest
 
 - (NSData *)randomDatabasePassword